[META] Chunking and querying of long passages for vector search

[samuel-oci]

Is your feature request related to a problem?

This is meta issue that orchestrate all tasks related to chunking and search of long passages and include both ingest, storage and query paths.

RFC ingest path: https://github.com/opensearch-project/neural-search/issues/548

RFC query path: TBD

RFC storage path: TBD

Issues: https://github.com/opensearch-project/k-NN/issues/1065 https://github.com/opensearch-project/neural-search/issues/482